CN109638781A - A kind of water-cooled motor means for protecting power device when water-break and method - Google Patents
A kind of water-cooled motor means for protecting power device when water-break and method Download PDFInfo
- Publication number
- CN109638781A CN109638781A CN201811320922.5A CN201811320922A CN109638781A CN 109638781 A CN109638781 A CN 109638781A CN 201811320922 A CN201811320922 A CN 201811320922A CN 109638781 A CN109638781 A CN 109638781A
- Authority
- CN
- China
- Prior art keywords
- water
- intermediate relay
- normally closed
- cooled motor
- contact
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000000498 cooling water Substances 0.000 abstract description 9
- 238000005065 mining Methods 0.000 abstract description 5
- 239000003245 coal Substances 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 abstract description 2
- 238000012544 monitoring process Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000008450 motivation Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
- H02H5/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal fluid pressure, liquid level or liquid displacement, e.g. Buchholz relays
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/24—Protection against failure of cooling arrangements, e.g. due to loss of cooling medium or due to interruption of the circulation of cooling medium
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Hydraulic Turbines (AREA)
Abstract
The invention discloses a kind of water-cooled motor means for protecting power device when water-break and methods; one pressure controller is installed in the water outlet of water-cooled motor; the discharge pressure of real-time monitoring motor cooling water; when standard requirements are not achieved in motor cooling water discharge pressure; pressure controller can issue alarm instruction; control electric motor power switch is sent a signal to simultaneously, the movement tripping of its control switch is forced, this water-cooled motor is realized and is protected.Water cut-off protection of the invention is suitable for all water-cooling pattern motor such as coal mining machine in full-mechanized mining face motor, scratch board conveyor motor.
Description
Technical field
The present invention relates to motor protection fields, and in particular to a kind of water-cooled motor means for protecting power device when water-break and method.
Background technique
In process of production, there is high temperataure phenomena in down-hole combined mining working Electric Motor on Drum Shearer, scratch board conveyor motor,
Can not determining whether motor water pressure of cooling water (flow) complies with standard, (motor cooling water operating pressure is no more than 3MPa；Electricity
Motivation cooling water flow is not less than 2.1m3/ h), motor winding damage occurs.
Summary of the invention
The present invention provides a kind of water-cooled motor means for protecting power device when water-break and method, the shortcomings that overcome the prior art, this
Invention can sound an alarm and close motor power, to this when standard requirements are not achieved in motor cooling water discharge pressure
Water-cooled motor realizes protection.
In order to achieve the above objectives, the present invention adopts the following technical scheme:
A kind of water-cooled motor means for protecting power device when water-break, the pressure sensor of the water outlet including water-cooled motor is arranged in,
The output end of pressure sensor is connected to pressure controller by master controller, and the pressure controller includes the first intermediate relay
Device, the second intermediate relay, the time relay, green light and red light, the first intermediate relay, the second intermediate relay, the time after
One end of electric appliance, green light and red light is connected to one end of power supply, and the other end of the first intermediate relay is connected to pressure control
One end of device normal opened contact, the other end of the second intermediate relay are connected to one end of time relay normal opened contact, the time after
The other end of electric appliance is connected to one end of pressure controller normally closed contact, and the other end of pressure controller normally closed contact is connected to
One end of one intermediate relay normally closed contact, the other end of green light is connected to one end of the second intermediate relay normally closed contact, red
The other end of lamp is connected to one end of the second intermediate relay normal opened contact, the other end of pressure controller normal opened contact, time
The other end of relay normally open contact, the other end of the first intermediate relay normally closed contact, the second intermediate relay normally closed contact
The other end and the other end of the second intermediate relay normal opened contact be connected to the other end of power supply.
Further, the second intermediate relay normally closed contact is connected to the control switch of water-cooled motor.
A kind of water-cooled motor water cut-off protection method, when pressure sensor detects the water outlet of water-cooled motor without hydraulic pressure
When, master controller controls pressure controller normally closed contact closure, the first intermediate relay normally closed contact closure, and the time relay is inhaled
It closing, time relay normal opened contact closure, the second intermediate relay is attracted, and the second intermediate relay normally closed contact is opened, and second
Intermediate relay normal opened contact closure, then red light is bright alarms, and green light goes out；
When pressure sensor detect the hydraulic pressure of the water outlet of water-cooled motor in preset range, master controller control pressure
Force controller normal opened contact closure, the first intermediate relay normally closed contact are opened, and the time relay disconnects, and the time relay is normally opened
Contact is opened, and the second intermediate relay disconnects, the second intermediate relay normally closed contact closure, the second intermediate relay normal opened contact
It opens, then green light, red light go out.
Further, the second intermediate relay normally closed contact is connected to the control switch of water-cooled motor.
Further, when the second intermediate relay normally closed contact is opened, then the control route for going control switch, control are disconnected
System switch disconnects, and water-cooled motor stops working；When the second intermediate relay normally closed contact closure, then closure goes control switch
Control route, control switch closure, water-cooled motor normally starts.
Compared with prior art, the invention has the following beneficial technical effects:
The present invention installs pressure sensor and pressure controller in the water outlet of water-cooled motor, passes through pressure sensor reality
When monitor motor cooling water discharge pressure, when standard requirements are not achieved in motor cooling water discharge pressure, pressure control
Device can issue alarm instruction by red light, to remind staff to regulate and control.
Further, water-cooled motor control switch is sent a signal to while alarm, its control switch is forced to act
Tripping is realized this water-cooled motor and is protected, motor winding is effectively prevent to damage.
The method of the present invention can sound an alarm and close electricity when standard requirements are not achieved in motor cooling water discharge pressure
Motivation power supply is realized this water-cooled motor and is protected, and coal mining machine in full-mechanized mining face motor, scratch board conveyor motor are suitable for
Etc. all water-cooling pattern motor.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is pressure controller circuit connection diagram of the invention；
Wherein, 1, water outlet；2, pressure controller；3, water-cooled motor；4, water inlet end；5, connector lug；6, among first
Relay；7, the second intermediate relay；8, the time relay；9, green light；10, red light；11, pressure controller normal opened contact；12,
Time relay normal opened contact；13, pressure controller normally closed contact；14, the first intermediate relay normally closed contact；15, in second
Between relay normally closed contact；16, the second intermediate relay normal opened contact.
Specific embodiment
Present invention is further described in detail with reference to the accompanying drawing:
A kind of water-cooled motor means for protecting power device when water-break, the pressure sensing of the water outlet 1 including water-cooled motor 3 is arranged in
The output end of device, pressure sensor is connected to pressure controller 2 by master controller, and the pressure controller 2 includes in first
Between relay 6, the second intermediate relay 7, the time relay 8, green light 9 and red light 10, among the first intermediate relay 6, second
Relay 7, the time relay 8, green light 9 and red light 10 one end be connected to one end of power supply, the first intermediate relay 6 it is another
One end is connected to one end of pressure controller normal opened contact 11, and the other end of the second intermediate relay 7 is connected to the time relay
One end of normal opened contact 12, the other end of the time relay 8 are connected to one end of pressure controller normally closed contact 13, pressure control
The other end of device normally closed contact 13 is connected to one end of the first intermediate relay normally closed contact 14, and the other end of green light 9 is connected to
One end of second intermediate relay normally closed contact 15, the other end of red light 10 are connected to the second intermediate relay normal opened contact 16
One end, the other end of pressure controller normal opened contact 11, the other end of time relay normal opened contact 12, the first intermediate relay
The other end of normally closed contact 14, the other end of the second intermediate relay normally closed contact 15 and the second intermediate relay normal opened contact 16
The other end be connected to the other end of power supply, the second intermediate relay normally closed contact 15 is connected to water-cooled motor 3
Control switch.
When pressure sensor detects the water outlet 1 of water-cooled motor 3 without hydraulic pressure, master controller controls pressure controller
Normally closed contact 13 is closed, and the first intermediate relay normally closed contact 14 closure, the time relay 8 is attracted, and the time relay is normally opened to be connect
12 closure of point, the second intermediate relay 7 are attracted, and the second intermediate relay normally closed contact 15 is opened, and the control for going control switch is disconnected
Route processed, control switch disconnect, and water-cooled motor 3 stops working, and the water inlet of water inlet end 4 stops；Second intermediate relay is normally opened to be connect
16 closure of point, then red light 10 is bright alarms, and green light 9 goes out；
When pressure sensor detect the hydraulic pressure of the water outlet 1 of water-cooled motor 3 in preset range, master controller control
Pressure controller normal opened contact 11 be closed, the first intermediate relay normally closed contact 14 open, the time relay 8 disconnect, the time after
Electric appliance normal opened contact 12 is opened, and the second intermediate relay 7 disconnects, and the second intermediate relay normally closed contact 15 closure, closure goes to control
The control route of switch, control switch closure are made, water-cooled motor 3 normally starts, and the second intermediate relay normal opened contact 16 is beaten
It opens, then green light 9 is bright, and red light 10 goes out.
Claims (5)
1. a kind of water-cooled motor means for protecting power device when water-break, which is characterized in that including being arranged in the water outlet of water-cooled motor (3)
(1) output end of pressure sensor, pressure sensor is connected to pressure controller (2) by master controller, the pressure control
Device (2) processed includes the first intermediate relay (6), the second intermediate relay (7), the time relay (8), green light (9) and red light
(10), the one of the first intermediate relay (6), the second intermediate relay (7), the time relay (8), green light (9) and red light (10)
End is connected to one end of power supply, and the other end of the first intermediate relay (6) is connected to pressure controller normal opened contact (11)
The other end of one end, the second intermediate relay (7) is connected to one end of time relay normal opened contact (12), the time relay
(8) the other end is connected to one end of pressure controller normally closed contact (13), the other end of pressure controller normally closed contact (13)
It is connected to one end of the first intermediate relay normally closed contact (14), it is normal that the other end of green light (9) is connected to the second intermediate relay
One end of contact (15) is closed, the other end of red light (10) is connected to one end of the second intermediate relay normal opened contact (16), pressure
The other end of controller normal opened contact (11), the other end of time relay normal opened contact (12), the first intermediate relay are normally closed
The other end and the second intermediate relay normal opened contact of the other end of contact (14), the second intermediate relay normally closed contact (15)
(16) the other end is connected to the other end of power supply.
2. a kind of water-cooled motor means for protecting power device when water-break according to claim 1, which is characterized in that among described second after
Electric appliance normally closed contact (15) is connected to the control switch of water-cooled motor (3).
3. a kind of water-cooled motor water cut-off protection method, using a kind of water-cooled motor water cut-off protection dress described in claim 1
It sets, which is characterized in that when pressure sensor detects the water outlet (1) of water-cooled motor (3) without hydraulic pressure, master controller control
Pressure controller normally closed contact (13) closure, the first intermediate relay normally closed contact (14) closure, the time relay (8) are attracted,
Time relay normal opened contact (12) closure, the second intermediate relay (7) are attracted, and the second intermediate relay normally closed contact (15) is beaten
It opens, the second intermediate relay normal opened contact (16) closure, then red light (10) is bright alarms, and green light (9) goes out；
When pressure sensor detect the hydraulic pressure of the water outlet (1) of water-cooled motor (3) in preset range, master controller control
Pressure controller normal opened contact (11) closure, the first intermediate relay normally closed contact (14) are opened, and the time relay (8) disconnects,
Time relay normal opened contact (12) is opened, and the second intermediate relay (7) disconnects, and the second intermediate relay normally closed contact (15) closes
It closes, the second intermediate relay normal opened contact (16) is opened, then green light (9) is bright, and red light (10) goes out.
4. a kind of water-cooled motor water cut-off protection method according to claim 3, which is characterized in that among described second after
Electric appliance normally closed contact (15) is connected to the control switch of water-cooled motor (3).
5. a kind of water-cooled motor water cut-off protection method according to claim 4, which is characterized in that when the second intermediate relay
When device normally closed contact (15) is opened, then the control route for going control switch is disconnected, control switch disconnects, and water-cooled motor (3) stops
Only work；When the second intermediate relay normally closed contact (15) closure, then closure goes the control route of control switch, control switch
Closure, water-cooled motor (3) normally start.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811320922.5A CN109638781A (en) | 2018-11-07 | 2018-11-07 | A kind of water-cooled motor means for protecting power device when water-break and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811320922.5A CN109638781A (en) | 2018-11-07 | 2018-11-07 | A kind of water-cooled motor means for protecting power device when water-break and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109638781A true CN109638781A (en) | 2019-04-16 |
Family
ID=66067460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811320922.5A Pending CN109638781A (en) | 2018-11-07 | 2018-11-07 | A kind of water-cooled motor means for protecting power device when water-break and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109638781A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110277767A (en) * | 2019-05-07 | 2019-09-24 | 重庆全营紧固件有限公司 | A kind of intelligent electric machine protective device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4008755A (en) * | 1973-01-24 | 1977-02-22 | Siemens Aktiengesellschaft | Leak indicating apparatus for a closed cooling system of an electric machine |
| CN2912841Y (en) * | 2006-05-01 | 2007-06-20 | 刘同鑫 | Self-closing high pressure water cleaning machine for water cut-off |
| CN201855938U (en) * | 2010-10-14 | 2011-06-08 | 山东默锐化学有限公司 | Rear interlocking protection device for preventing sodium interruption and having no cooling water during sodium casting |
| CN104266317A (en) * | 2014-10-24 | 2015-01-07 | 中国扬子集团滁州扬子空调器有限公司 | Heat recovery control circuit for air conditioner and control method thereof |
| CN205407631U (en) * | 2015-02-06 | 2016-07-27 | 贾尚美 | JX motor voltage -reduction starting multifunctional controller |
| CN209104789U (en) * | 2018-11-07 | 2019-07-12 | 陕西南梁矿业有限公司 | A kind of water-cooled motor means for protecting power device when water-break |
-
2018
- 2018-11-07 CN CN201811320922.5A patent/CN109638781A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4008755A (en) * | 1973-01-24 | 1977-02-22 | Siemens Aktiengesellschaft | Leak indicating apparatus for a closed cooling system of an electric machine |
| CN2912841Y (en) * | 2006-05-01 | 2007-06-20 | 刘同鑫 | Self-closing high pressure water cleaning machine for water cut-off |
| CN201855938U (en) * | 2010-10-14 | 2011-06-08 | 山东默锐化学有限公司 | Rear interlocking protection device for preventing sodium interruption and having no cooling water during sodium casting |
| CN104266317A (en) * | 2014-10-24 | 2015-01-07 | 中国扬子集团滁州扬子空调器有限公司 | Heat recovery control circuit for air conditioner and control method thereof |
| CN205407631U (en) * | 2015-02-06 | 2016-07-27 | 贾尚美 | JX motor voltage -reduction starting multifunctional controller |
| CN209104789U (en) * | 2018-11-07 | 2019-07-12 | 陕西南梁矿业有限公司 | A kind of water-cooled motor means for protecting power device when water-break |
Non-Patent Citations (2)
| Title |
|---|
| 李天榜: "水泵自动控制装置", 中州煤炭, no. 02, pages 48 - 50 * |
| 毛凤石;: "双水内冷发电机的断水保护装置", 四川电力技术, no. 02, pages 41 - 42 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110277767A (en) * | 2019-05-07 | 2019-09-24 | 重庆全营紧固件有限公司 | A kind of intelligent electric machine protective device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203154692U (en) | Intelligent firefighting patrol inspection equipment | |
| CN204357487U (en) | Mine wind-powered electricity generation and gas electric shutting control system | |
| CN209104789U (en) | A kind of water-cooled motor means for protecting power device when water-break | |
| CN204678019U (en) | A kind of Lubrication Control System of multiple-channel output | |
| CN109638781A (en) | A kind of water-cooled motor means for protecting power device when water-break and method | |
| CN103496129B (en) | A kind of mold hot runner gum leakage automatic detection system | |
| CN104637238A (en) | Transformer substation terminal box and mechanism box heating moisture-dispelling alarm device | |
| CN203336211U (en) | Production line emergency shutdown device | |
| CN203587338U (en) | Pressure switch service life detection tooling | |
| CN207336647U (en) | Unmanned water supply station fault detect and recovery system | |
| CN205302580U (en) | Leak water alarming system based on reactive power compensator | |
| CN209168347U (en) | A kind of electric disaster hidden-trouble on-line monitoring alarming apparatus | |
| CN103763876B (en) | Multifunctional positive pressure explosion prevention controls splicing cabinet | |
| CN204261459U (en) | water purifier assembly | |
| CN210428118U (en) | Safe power-off system of tobacco shred making equipment | |
| CN206647123U (en) | Mine fan automatic switching control equipment | |
| CN209523931U (en) | A kind of hydraulic oil supply cylinder automatic switchover hydraulic system of ladle slide gate in billet | |
| CN207555199U (en) | Portable SF6 automatic air supply devices | |
| CN207834139U (en) | A kind of thermal power plant pull switch display device | |
| CN202666261U (en) | Automatic patrolling and examining equipment for fire pump | |
| CN208305430U (en) | Crystal cutting machine flushing subsystem | |
| CN212784751U (en) | Scraper formula centrifuge control circuit | |
| CN104833892A (en) | 35kV power substation inlet wire live-line state alarm monitor | |
| CN208431173U (en) | A kind of fire protection patrol cabinet | |
| CN210605484U (en) | Water level monitoring device for domestic water tank |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |